#ifndef _Exchange_get_dev_msg_H
#define _Exchange_get_dev_msg_H
#include "main.h"
extern u8 get_tankvalid_use_flag(u8 tank_num);
extern u8 get_usable_tank_num(void);
extern u8 get_free_tank(srtu_free_tank_msg *free_tank_msg);

extern u8 get_allow_exchange_status(void);


#endif
